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Phenomenological and Cosmological Aspects of a Minimal GUT Scenario
High Energy Physics - Phenomenology · Submitted 5 Dec 2005
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim We conclude that this GUT scenario can be tested at the next generation of proton decay experiments and future colliders through the production of scalar leptoquarks.
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The abstract, sentence by sentence
Several phenomenological and cosmological aspects of a minimal extension of the Georgi-Glashow model, where the Higgs sector is composed by 5_H, 15_H, and 24_H, are studied. It is shown that the constraints coming from the unification of gauge interactions up to two-loop level predict light scalar leptoquarks. In this GUT scenario, the upper bound on the total proton decay lifetime is tau_p < 1.4 x 10^36 years. The possibility to explain the matter-antimatter asymmetry in the universe through the decays of SU(2)_L scalar triplets is also studied. We find that a successful triplet seesaw leptogenesis implies an upper bound on the scalar leptoquark mass, M_Phib < 10^{6-7} GeV. We conclude that this GUT scenario can be tested at the next generation of proton decay experiments and future colliders through the production of scalar leptoquarks.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | Several phenomenological and cosmological aspects of a minimal extension of the Georgi-Glashow model, where the Higgs sector is composed by 5_H, 15_H, and 24_H, are studied. | contribution 0.98 | 0.83 | 0.03 | asserted 0.82 |
| s1 | It is shown that the constraints coming from the unification of gauge interactions up to two-loop level predict light scalar leptoquarks. | result 1.00 | 0.85 | 0.13 | asserted 1.00 |
| s2 | In this GUT scenario, the upper bound on the total proton decay lifetime is tau_p < 1.4 x 10^36 years. | result 1.00 | 0.74 | 0.09 | asserted 1.00 |
| s3 | The possibility to explain the matter-antimatter asymmetry in the universe through the decays of SU(2)_L scalar triplets is also studied. | contribution 1.00 | 0.69 | 0.03 | hedged possibility 0.80 |
| s4 | We find that a successful triplet seesaw leptogenesis implies an upper bound on the scalar leptoquark mass, M_Phib < 10^{6-7} GeV. | result 1.00 | 0.95 | 0.14 | asserted 1.00 |
| s5 | We conclude that this GUT scenario can be tested at the next generation of proton decay experiments and future colliders through the production of scalar leptoquarks. | interpretation 0.61 | 0.71 | 0.90 | asserted 0.78 |
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The paper
Original abstract
Several phenomenological and cosmological aspects of a minimal extension of the Georgi-Glashow model, where the Higgs sector is composed by 5_H, 15_H, and 24_H, are studied. It is shown that the constraints coming from the unification of gauge interactions up to two-loop level predict light scalar leptoquarks. In this GUT scenario, the upper bound on the total proton decay lifetime is tau_p < 1.4 x 10^36 years. The possibility to explain the matter-antimatter asymmetry in the universe through the decays of SU(2)_L scalar triplets is also studied. We find that a successful triplet seesaw leptogenesis implies an upper bound on the scalar leptoquark mass, M_Phib < 10^{6-7} GeV. We conclude that this GUT scenario can be tested at the next generation of proton decay experiments and future colliders through the production of scalar leptoquarks.
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References
How the literature uses it
23 arXiv papers cite this in 28 sentences
Papers citing it · 20 sentences without a confident label
Uses its data or values 2 papers
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Also, a model [ref] that $(i)$ uses perturbative couplings to generate neutrino masses, $(ii)$ relies on operators of Eq. [ref] to generate charged fermion masses, and $(iii)$ implements Eqs. [ref], [ref], and [ref] to suppress gauge mediated proton decay signatures, yields $α_GUT^-1=37.1$ and $y_t=0.42$, where $α_GUT$ is evaluated via the two-loop level gauge coupling unification analysis, whereas $y_t$, at $M_GUT$, is obtained through the one-loop level renormalisation group equation running.
Is Doublet-Triplet Splitting Necessary? · Cutoff Scale Limit · 0.94
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In some works such as [ref] the SU(5) scale is as low as $M_X$ $≈$ $4 ×10^15$ after the addition of extra Higgs multiplets.
Unified dark matter with intermediate symmetry breaking scales · Phenomenological Constraints · 0.83
Compares with it 1 paper
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Unlike existing models that rely on non-colored multiplets (all tree-level neutrino mass models Refs. [ref] as well as radiative neutrino mass models Refs. [ref] ), ours operates at two-loop order, resulting in a unique implication: a set of leptoquarks remains light.
Leptoquark-Mediated Two-Loop Neutrino Mass in Unified Theory · Numerical analysis and results · 0.90
Cites it as background 5 papers
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There have been numerous efforts to endow neutrinos with non-zero masses (see, for example, Refs. [ref] , where neutrinos get their masses at the tree-level, and Refs. [ref] , where neutrino masses appear at the loop level[For original radiative neutrino mass models, see Refs. [ref] .]).
Leptoquark-Mediated Two-Loop Neutrino Mass in Unified Theory · Introduction · 0.97
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Hence, as such, the tree-level Higgs spectrum is clearly unable to support the physically interesting breaking patterns with either $ω_BL≪ω_R$ or $ω_R≪ω_BL$, thus avoiding the intermediate flipped $SU(5)' ⊗U(1)_Z'$ stage. $SU(5)$ intermediate stages, $ω_BL, ω_R ≪σ$, are disfavoured as well[Recently, there were several attempts to reconcile the simplest non-SUSY $SU(5)$ scenarios with the gauge unification by means of intermediate-scale thresholds, see, e.g., [ref] and references therein.
Seesaw Scale in the Minimal Renormalizable SO(10) Grand Unification · The tree-level scalar spectrum · 0.87
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(For alternative approaches to the proton decay suppression of interest, see Refs. [ref] .)
Non-Renormalizable SU(5) GUTs: Leptoquark-Induced Neutrino Masses · Introduction · 0.93
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